A Florida woman claims she was trumped by the Trump Plaza co-op board.

Mitra Chappell claims she was forced to sell her Upper East Side pad in the building back to the co-op at a loss, because the board was price-fixing.

Chappell shelled out $450,000 for a one-bedroom unit in 2004, but claims when it came time for her to sell, the board intentionally rejected prospective buyers without giving a reason, and “engag[ed] in price fixing in order to maintain sales prices in the building,” according to a lawsuit Chappell filed in 2011.

Unable to keep up with the mortgage or maintenance, the unit was put up for auction — but not sold.

Trump Plaza eventually bought Chappell’s unit for $400,000, reselling it this summer for $640,000.

Chappell, who settled her suit against Trump Plaza last year, has now filed litigation against Wells Fargo, claiming it failed to follow through on the foreclosure auction and padlocked the apartment, leaving her no choice but to sell to Trump Plaza.

Wells Fargo declined to comment on the suit filed last week in Manhattan Supreme Court. Trump Plaza could not be reached for comment.